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The photocoagulated effect on ischemic retinal vein occlusion by argon laser
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF OCULAR FUNDUS DISEASES
- Issue:
- 4
- DOI:
- 10.3760/j.issn:1005-1015.2003.04.001
- Key Word:
- 视网膜静脉闭塞/治疗;新生血管化,病理性/治疗;激光凝固术
Abstract： 目的观察氩激光光凝对缺血型视网膜静脉阻塞(ischemic retinal vein occlusion,IRVO)性新生血管的预防和治疗效果.方法本院眼底病组门诊及住院的IRVO缺血型患者244例268只眼经日产Topcon50VT相机荧光素眼底血管造影(fundus fluorescein angiography,FFA)确诊.以新生血管的有无分为预防组和治疗组.2组患者均以下述相同的条件进行治疗:用美国产hgm型氩离子激光器、绿兰混合光,光斑200～500 μm,时间0.1～0.5 s,功率0.3～1.0 w,Ⅲ级轻、中度反应,激光光凝覆盖全部无灌注区,分别在激光光凝术后3、24周行FFA复查,如有新的或光凝不全的无灌注区则进行补充光凝,2组患者均以光凝后半年行检眼镜及FFA观察的结果为准.结果预防性激光光凝组160只眼,激光中光凝后仅17只眼产生了新生血管,占10.6%;143只眼未发生新生血管,占89.4%.治疗性激光光凝组行激光光凝治疗的108只眼中,激光光凝后69只眼新生血管萎缩,占63.9%;39只眼激光光凝无效,占36.1%.Ⅲ级反应一个光斑直径间隔的密度疗效优于Ⅱ～Ⅲ级反应1.5个光斑直径间隔和Ⅱ级或低于Ⅱ级反应2个光斑直径间隔的密度,相比差异有显著性的意义(P＜0.01).结论氩激光对IRVO新生血管的预防性激光光凝和治疗性激光光凝均有明显的效果,预防性激光光凝更有意义;Ⅲ级反应的激光光凝能量和一个光斑的间隔密度是治疗IRVO性新生血管的较佳参数.
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